.titles{
    width: 600px;
    margin: auto;
    padding: 10px 10px;
    border-bottom: 1px solid beige;
    font-size: 30px;
    display: flex;
    justify-content: space-around;
    color: #A2A1A1;
}
.title_active {
    color: #D0D8C5;
    border-bottom: 5px solid red;
}
.select_content{
    font-size: 32px;
    line-height: 60px;
    padding: 0 25px;
}
.material{
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1xp solid gainsboro;
}